As Dr. Shainhouse points out, since silk pillowcases reduce friction, they also minimize chafing when you move around at night. In return, this may reduce irritant skin reactions, such as eczematous flares, inflammatory acne, or rosacea.
As such, silk pillowcases can be quite beneficial for those with sensitive skin: "Silk pillowcases are more gentle on the skin," says board-certified dermatologist Dr. Shari Sperling, MD. "Cotton pillowcases absorb moisture from the skin, so it can dry out those with sensitive skin."
While silk pillowcases are less absorbent than cotton pillowcases, board-certified dermatologist Dr. Anna H. Chacon, MD points out that you still need to wash them just as often.
"It is more than important to evaluate the state of your pillow and bedsheets," she says. "Try to wash them at least twice weekly, so that residual oils do not contribute to breakouts or additional acne flares."
Oh, and be sure to choose your detergent carefully: "If you have sensitive skin, or are generally prone to acne, you should also check the type of detergent or dryer sheets you may be using," says Dr. Sobel.
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Yes, silk pillowcases can help your skin. However, Dr. Shainhouse says it's important to remember that they can only do so much: "Silk pillowcases are definitely not a cure for acne, particularly hormonal cystic flares and acne rosacea, to which many adult women are prone," she explains.
Additionally, board-certified dermatologist Dr. Adarsh Vijay Mudgil, MD, says that there are currently no studies that demonstrate the effectiveness of silk pillowcases. "Silk pillows are certainly luxurious, but unfortunately, there's really no proven benefit and no signs that using a silk pillow helps prevent wrinkles or acne," he explains. That said, he agrees that silk's lower absorbance level can help keep sensitive skin calm.
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Thankfully, silk pillowcases don't have to cost an arm or a leg — the Alaska Bear Natural Mulberry Silk Pillowcase, $23.99, is both budget-friendly and dermatologist approved.
"The Mulberry silk in the Alaska Bear is all-natural and will aid in absorbing oil from your skin while retaining natural moisture to not dry out the skin," says board-certified dermatologist Dr. Marie Hayag, MD. "Not only is this pillowcase ideal for acne, but is great for wrinkles and preserving the natural beauty of your skin in turn."